4 base lens geometry with HDO™Impact Protection

Virtually indestructible Grilamid TR-90 nylon frames keep the supremely stylish Crit lightweight

The Siren 4 is uniquely engineered to cradle the distinct contours of female feet

Quick release centre half zip

Ronhill Women's Tech Reflect 1/2 Zip-Assorted Colours Size:8 4 base lens geometry withThe Ronhill Women's Tech Reflect 1 2 Zip Description Reflective and super soft running long sleeved tee with a half zip for ventilation. Introducing our lightweight thermal base layer, designed for maximum comfort and visibility on cooler days. Ideal for wearing next to the skin, this half zip features new iridescent reflective strips and a 360 reflective print to ensure you stay seen during low light runs. Made from super soft polyester with a